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Solution


Q.

Number of amine compounds from the following giving solids which are soluble in NaOH upon reaction with Hinsberg’s reagent is _______.             [2024]

Ans.

(5)

Primary amines (aliphatic or aromatic) react with Hinsberg’s reagent to form solids which are soluble in NaOH. Secondary amines react with Hinsberg’s reagent to form solids which are insoluble in NaOH. Tertiary amines do not react with Hinsberg’s reagent.

Amongst given options, following are primary amines and hence form solids soluble in NaOH upon reaction with Hinsberg’s reagent: